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ISRN Toxicol. 2013 Sep 19;2013:610648. doi: 10.1155/2013/610648. eCollection 2013.

Potential Toxic Levels of Cyanide in Almonds (Prunus amygdalus), Apricot Kernels (Prunus armeniaca), and Almond Syrup.

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Laboratoire De Toxicologie, Centre D'assistance Medicale et Urgente, Tunis, Tunisia ; Unité de Recherche du Laboratoire de Toxicologie et Environnement LR12SP07, 10 rue Aboul Kacem Chabbi, 1008 Montfleury, Tunis, Tunisia.


Under normal environmental conditions, many plants synthesize cyanogenic glycosides, which are able to release hydrogen cyanide upon hydrolysis. Each year, there are frequent livestock and occasional human victims of cyanogenic plants consumption. The present work aims to determine the hydrocyanic acid content in different samples of cyanogenic plants, selected from the Tunisian flora, and in the almond syrup. In order to evaluate their toxicity and their impact on the consumer health in the short term as well as in the long term, using the ISO 2164-1975 NT standard, relating to the determination of cyanogenic heterosides in leguminous plants.

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